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The elements of group 16 are called as c...

The elements of group 16 are called as chalcogens. Give reason.

A

Hydrocarbons

B

Ore-forming elements

C

Oxide-forming elements

D

Those having ability to catenate

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The correct Answer is:
B
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CENGAGE CHEMISTRY ENGLISH-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exercise (Single Correcttype)
  1. During smelting, an additional is added which combines with impurites ...

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  2. The process of isolation of metals by dissolving the ore in a suitable...

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  3. Complexes formed in the following methods are : (1) Mond’s process ...

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  4. Casseterite ore consists of magnetic impurity named as

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  5. Find the formula of A ZnS + O(2) rarr (A) + SO(2).

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  6. Four metals and their methods of refinement are given (i) Ni, Cu, Z...

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  7. Which of the following statement is correct regarding Cu extraction ?

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  8. Which of the following process is not involved in the extraction of Fe...

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  9. Carbon reduction process is not commercially applicable for which of t...

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  10. Which of the following metal can be reduced by carbon reduction as wel...

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  11. Which of the following factors is of no significance for roasting sul...

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  12. The method not used in metallurgy to refine impure metal is :

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  13. The elements of group 16 are called as chalcogens. Give reason.

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  14. The oxidation states of Cu and Fe in chalcopyrite are, respectively,

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  15. Thermite reduction is not used for commercial extraction of the respec...

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  16. Which of the following is incorrect on the basic of the above Ellingha...

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  17. Copper can be extracted by hydrometallurgy but not zinc. Explain.

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  18. Which of the following statement is correct ?

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  19. Consider the following metallurgical processes : (1) Heating impure ...

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  20. Consider the following statements : Roasting is carried out to : 1...

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